Original LUA oscillators: viewtopic.php?f=17&t=60133.
Formulas:
haOpen[i] = (haOpen[i-1]+haClose[i-1])/2,
haClose[i] = (Open[i]+High[i]+Low[i]+Close[i])/4,
haDiff[i] = haClose-haOpen,
Signal = MA(haDiff),
MA - moving average with [Method] as type and [Length] as number of periods.
Download: